Also known as the Alaka'i Swamp, the Alaka'i Wilderness Preserve is a tropical rainforest fed by rainwater from Wai'ale'ale's mountains. Although it is not a swamp by definition, the fog-wrapped park has numerous bogs. The trail through the park has recently been outfitted with boardwalks that make traversing the wet terrain and reaching Kilohana lookout at the end of the trail easier than ever before.
Due to weather conditions, the Alakai Wilderness Preserve is not always accessible. However, guests consistently rate it as their favorite activity on the island when conditions are just right. The 3.5 mile is accessible from the Pihea Vista trail, which is connected to the Pu'o Kila Lookout on Waimea Canyon road. Be sure to bring water and supplies, as there are no facilities in the park.